Having flown both factions, I would say that Ackbar is very solid. There's also a lot of solid choices from both factions, so I don't want this to sound like Ackbar is clear best out of everyone. He's nowhere at that level.
If you were only playing Imperials, I would seriously look into a pair of Raiders with APTs and Ordnance Experts. They absolutely ruin Ackbar fleets that just try and sail horizontally with broadsides because they're able to block the entire line. Once the line is blocked, overwhelm the Home One's firing arc with the ISD, Glad or even more Raiders. Just make sure you saturate one broadside because he can only shoot at one ship at a time. Once that happens, 8 hull goes down quickly. Once the APTs fire and you start ramming the Home One, he's as good as dead.
With my Imperial Ozzel list, I've been able to kill the MC80 from a good half the time. 8 hull really goes by quick.